EP1239257A1 - Procédé pour la fabrication de tubes de canon - Google Patents

Procédé pour la fabrication de tubes de canon Download PDF

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Publication number
EP1239257A1
EP1239257A1 EP02002665A EP02002665A EP1239257A1 EP 1239257 A1 EP1239257 A1 EP 1239257A1 EP 02002665 A EP02002665 A EP 02002665A EP 02002665 A EP02002665 A EP 02002665A EP 1239257 A1 EP1239257 A1 EP 1239257A1
Authority
EP
European Patent Office
Prior art keywords
max
vanadium
molybdenum
manganese
phosphorus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02002665A
Other languages
German (de)
English (en)
Other versions
EP1239257B1 (fr
Inventor
Walter Grimm
Wolfgang Arrenbrecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buderus Edelstahl GmbH
Rheinmetall W&M GmbH
Original Assignee
Buderus Edelstahl GmbH
Rheinmetall W&M GmbH
Edelstahlwerke Buderus AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Buderus Edelstahl GmbH, Rheinmetall W&M GmbH, Edelstahlwerke Buderus AG filed Critical Buderus Edelstahl GmbH
Publication of EP1239257A1 publication Critical patent/EP1239257A1/fr
Application granted granted Critical
Publication of EP1239257B1 publication Critical patent/EP1239257B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
    • C21D9/12—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes barrels for ordnance
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/20—Barrels or gun tubes characterised by the material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D2261/00—Machining or cutting being involved

Definitions

  • the invention relates to a method for producing cannon and gun barrels of caliber 105-120 mm.
  • the standard material for these products is steel 35NiCrMoV 12-5, material no. 1.6959, described in the steel-iron list of the publishing house Stahleisen, Düsseldorf and in the material data sheet "tubular steel for heavy guns" of the BWB.
  • the manufacturing process for cannon tube blanks includes the steps of open melting, casting of ingots in suitable mold formats, forging the cannon tube blanks to an outer rough contour, annealing the forgings, pre-turning and predrilling the parts, hollow tempering (hardening and tempering to order stability), measuring the Delay in hardness or impact (maximum straightness deviation from the longitudinal axis in relation to the bearing points at the tube ends), mechanical straightening to ensure that it is free from impact and then relaxing approx. 30 ° C below the tempering temperature, quality checks and finishing to the delivery dimensions of the gun barrel blanks.
  • the work step is a qualitative problem in the conventional manufacturing process Focus on freedom from impact after the remuneration treatment because straightening does not achieve the straightness of the hole and plastic Residual stresses are induced.
  • a bended hole after straightening during subsequent boring to order size to straighten again and on the other hand remain despite the relaxation glow residual stresses in the material after straightening.
  • a) odd holes and residual stresses cause distortion the finishing of the pipes, which can only be compensated by further straightening operations
  • b) due to dimensional errors due to the delay during processing Rejects can arise and c) due to the shot accuracy (system error)
  • Straightness deviations in the bore and released internal stresses can be worsened by fire.
  • the purpose of the invention is to avoid the inaccuracies mentioned and the manufacturing difficulties associated with them, and the method specified in the claim is proposed to solve this problem.
  • the peculiarity is the tempering of the pipe blanks without drilling (tempered solid pipe).
  • the maximum warpage of the pre-turned blanks remained constant under 10 mm in this process.
  • the existing allowance of the tempered blanks allows the hole to be drilled in such a way that an exact centricity with respect to the bearing points is achieved at the end.
  • the drilling of the hole is carried out on modern deep hole drilling machines and, with the usual strengths of ⁇ 1300 N / mm 2, does not require much more effort than the conventional steps of pre-drilling in the annealed condition (strength ⁇ 1000 N / mm 2 ) and finish drilling after quenching and tempering.
  • the mechanical straightening previously required after tempering is no longer required.
  • a so-called "fat" analysis layer should be set according to the respective hardening cross-section and a fine-grained, uniform structure should be adjusted by temperature and deformation-controlled forging.
  • the mechanical quality values to be achieved are equivalent to the values of a hollow remuneration.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Forging (AREA)
  • Heat Treatment Of Steel (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP02002665A 2001-03-09 2002-02-06 Procédé pour la fabrication de tubes de canon Expired - Lifetime EP1239257B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10111304A DE10111304C2 (de) 2001-03-09 2001-03-09 Verfahren zur Herstellung von Rohren für schwere Geschütze
DE10111304 2001-03-09

Publications (2)

Publication Number Publication Date
EP1239257A1 true EP1239257A1 (fr) 2002-09-11
EP1239257B1 EP1239257B1 (fr) 2004-10-27

Family

ID=7676820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002665A Expired - Lifetime EP1239257B1 (fr) 2001-03-09 2002-02-06 Procédé pour la fabrication de tubes de canon

Country Status (5)

Country Link
US (1) US6652680B2 (fr)
EP (1) EP1239257B1 (fr)
AT (1) ATE280938T1 (fr)
DE (2) DE10111304C2 (fr)
ES (1) ES2230400T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007137714A1 (fr) * 2006-05-29 2007-12-06 Rheinmetall Waffe Munition Gmbh Procédé de fabrication d'acier forgé pour armes hautement sollicitées, ébauche tubulaire et arme équipée de celle-ci
CN102234744A (zh) * 2010-04-23 2011-11-09 宝山钢铁股份有限公司 一种超纯净合金及其汽轮机转子体锻件的制造方法
US8101004B2 (en) 2006-08-03 2012-01-24 Aubert & Duval Process for manufacturing steel blanks
US8252129B2 (en) 2006-08-03 2012-08-28 Aubert & Duval Method for transforming steel blanks
CN107868904A (zh) * 2017-09-27 2018-04-03 中原特钢股份有限公司 一种液压破碎锤活塞用钢及其制造工艺

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1321535B1 (fr) * 2001-12-19 2005-03-23 Böhler Bleche GmbH Matériau de haute protection ballistique
JP4332070B2 (ja) * 2004-06-01 2009-09-16 株式会社神戸製鋼所 大型鍛鋼品用高強度鋼およびクランク軸
ES2576453T3 (es) * 2007-04-13 2016-07-07 Sidenor Investigación Y Desarrollo, S.A. Acero endurecido y revenido y procedimiento de obtención de piezas de dicho acero
US7802393B2 (en) * 2007-07-02 2010-09-28 Sjs Paintball, Lp Soft-projectile gun barrel and method for making same
DE102010052628A1 (de) 2010-11-29 2012-05-31 Rheinmetall Waffe Munition Gmbh Perchloratfreie pyrotechnische Mischung
CN113828718B (zh) * 2021-09-23 2023-01-20 江苏裕隆锻造有限公司 一种克服410阀体锻件精加工炸裂的方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927822A1 (de) * 1969-05-31 1972-03-02 Heckler & Koch Gmbh Verfahren zur Herstellung eines vergueteten Waffenlaufes
US3780465A (en) * 1972-06-01 1973-12-25 Us Navy Wear resistant gun barrel and method of making the same
US4622080A (en) * 1983-01-05 1986-11-11 American Metal-Tech, Ltd. Gun barrel, mandrel and related processes
US4756677A (en) * 1982-12-23 1988-07-12 Vereinigte Edelstahlwerke Aktiengesellshaft Method of manufacturing a weapon barrel
US5458704A (en) * 1992-07-21 1995-10-17 Thyssen Stahl Ag Process for the production of thick armour plates
DE19531260A1 (de) * 1995-08-25 1997-02-27 Buderus Edelstahlwerke Ag Warmarbeitsstahl
WO2000058043A1 (fr) * 1999-03-15 2000-10-05 Damasteel Aktiebolag Ebauche destinee a un canon d'armes a feu, son procede de production et canon d'armes a feu

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924757C (de) * 1944-06-06 1955-03-07 Gussstahlwerk Bochumer Ver Ag Vergueten von Werkstuecken, welche inneren hohen Beanspruchungen ausgesetzt sind

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927822A1 (de) * 1969-05-31 1972-03-02 Heckler & Koch Gmbh Verfahren zur Herstellung eines vergueteten Waffenlaufes
US3780465A (en) * 1972-06-01 1973-12-25 Us Navy Wear resistant gun barrel and method of making the same
US4756677A (en) * 1982-12-23 1988-07-12 Vereinigte Edelstahlwerke Aktiengesellshaft Method of manufacturing a weapon barrel
US4622080A (en) * 1983-01-05 1986-11-11 American Metal-Tech, Ltd. Gun barrel, mandrel and related processes
US5458704A (en) * 1992-07-21 1995-10-17 Thyssen Stahl Ag Process for the production of thick armour plates
DE19531260A1 (de) * 1995-08-25 1997-02-27 Buderus Edelstahlwerke Ag Warmarbeitsstahl
WO2000058043A1 (fr) * 1999-03-15 2000-10-05 Damasteel Aktiebolag Ebauche destinee a un canon d'armes a feu, son procede de production et canon d'armes a feu

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007137714A1 (fr) * 2006-05-29 2007-12-06 Rheinmetall Waffe Munition Gmbh Procédé de fabrication d'acier forgé pour armes hautement sollicitées, ébauche tubulaire et arme équipée de celle-ci
US8101004B2 (en) 2006-08-03 2012-01-24 Aubert & Duval Process for manufacturing steel blanks
CN102433511A (zh) * 2006-08-03 2012-05-02 奥贝尔&杜瓦尔公司 制造钢坯的方法
US8252129B2 (en) 2006-08-03 2012-08-28 Aubert & Duval Method for transforming steel blanks
US8551397B2 (en) 2006-08-03 2013-10-08 Aubert & Duval Process for manufacturing steel blanks
CN102234744A (zh) * 2010-04-23 2011-11-09 宝山钢铁股份有限公司 一种超纯净合金及其汽轮机转子体锻件的制造方法
CN102234744B (zh) * 2010-04-23 2013-06-26 宝山钢铁股份有限公司 一种超纯净合金及其汽轮机转子体锻件的制造方法
CN107868904A (zh) * 2017-09-27 2018-04-03 中原特钢股份有限公司 一种液压破碎锤活塞用钢及其制造工艺

Also Published As

Publication number Publication date
DE10111304C2 (de) 2003-03-20
US20020124716A1 (en) 2002-09-12
EP1239257B1 (fr) 2004-10-27
DE50201374D1 (de) 2004-12-02
ES2230400T3 (es) 2005-05-01
ATE280938T1 (de) 2004-11-15
US6652680B2 (en) 2003-11-25
DE10111304A1 (de) 2002-09-19

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